A572 plate is a high-strength, low-alloy structural steel that includes five grades—42, 50, 55, 60, 65 and 80—according to their minimum specified yield strength.
ASTM A572 Grade 50 mechanical properties
| Mechanical Properties | ||||
| Grades | Yield Strength, ksi (MPa), ≥ | Tensile Strength, ksi (MPa), ≥ | Elongation, %, ≥ | |
| 8 in (200 mm) | 2 in (50 mm) | |||
| Grade 42 [290] | 42 (290) | 60 (415) | 20 | 24 |
| Grade 50 [345] | 50 (345) | 65 (450) | 18 | 21 |
| Grade 55 [380] | 55 (380) | 70 (485) | 17 | 20 |
| Grade 60 [415] | 60 (415) | 75 (520) | 16 | 18 |
| Grade 65 [450] | 65 (450) | 80 (550) | 15 | 17 |
A572 GR 50 steel physical properties
| Physical Properties (A572 GR 50) | |
| Density, g/cm3 (lb/in3) | 7,83 (0.283) |
| Modulus of elasticity (Elastic Modulus), GPa (103 ksi) | 207 (30) |
| Shear Modulus, GPa (103 ksi) | 80 (11.6) |
| Bulk Modulus, GPa (103 ksi) | 160 (23.2) |
| Poisson’s Ratio | 0.3 |
ASTM A572 Grade 50 Equivalent Material
| ASTM A572 Equivalent Grade | |||||||||||||
| US | European Union | Germany | Japan | Chinese | Indian | ISO | |||||||
| Standard | Grades | Standard | Grade | Standard | Grade | Standard | Grade | Standard | Grade | Standard | Grade | Standard | Grade |
| ASTM A572/A572M | Grade 50 [345] | EN 10025-2; EN 10025:1993 |
S355J2-steel_4448.html target=_blank class=infotextkey>S355JR (1.0045) | DIN EN 10025-2; EN 10025:1993 DIN 17100 |
S355JR (1.0045); St 52-3 |
JIS G3135 | SPFC590 | GB/T 1591 | Q345, Q355 | IS 2062 | E350 | ISO 630-2 | S355 |
| Grade 42 [290] | S275 | St 44 | S275 | ||||||||||
| Grade 55 [380] | Q390 | ||||||||||||
| Grade 60 [415] | Q420 | E410 | |||||||||||
| Grade 65 [450] | S460 | Q460 | E450 | S450 | |||||||||
Applications of A572 material
A572 material is widely used in engineering structures, construction steel structures, construction machinery, mining and mountain machinery, trucks, bridges, pressure vessels, etc., especially for construction and engineering machinery components that require good weldability and toughness. For example, riveted or bolted structures or welded structures for bridges and other applications.
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